Device for teaching music.



L. A. JAROS.

DEVICE FOR TEACHING MUSIC.

APPLICATION FILED MAY a, 1908.

Patented Feb. 16, 1909.

- handle F,

LADISLAW A. JAROS, OF CHICAGO, ILLINOIS.

DEVICE FOR TEACHING MUSIC.

Specification of Letters Patent.

Patented Feb. 16, 1909.

Application filed May 8, 1908. Serial No. 431,683.

To all whom it may concern:

Be it known that I, LAnisLAw A. JAROS, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented new and useful Improveical music ladders and music charts, andhas for its object to rovide a device of this character, which wil soundthe notes, or, in other words, give the pitch of the notes which aremade to appear on the staff.

Another object of this invention is to pro vide a device of thischaracter in which the reeds or pitches are made to vibrate or soundautomatically.

Another object of the invention is to provide a device of this characterwith which any note can be presented on the staff by the instructor oroperator and simultaneously sounded, thus placing a note before thepupil and at the same time giving the pitch of that note.

With these and other objects in view, as will more fully appear, theinvention consists in the novel construction and arrangement of partshereinafter described, illustrated in the accompanying drawings, andparticularly pointed out in the appended claims, it being understoodthat various changes in the form, proportions, size and minor details ofthe structure may be made without departing from the spirit orsacrificing any of the ad vantages of the invention.

In the accompanying drawings, Figure 1, is a front elevation of myimproved device; Fig. 2, is a side elevation thereof; Fig. 3, is a planof the device after the removal of the top of the case; Fig. 4, is afront elevation after the removal of the face A, and plate E; Fig. 5, isa side elevation, partly sectional, after the removal of the side of thecase, the

and the crank (Z. Fig. 6, is a perspective view, to which I will referhereafter.

The invention is illustrated as embodied in a mechanical music ladder,consisting of a case having a to bottom, sides, back and face. The faceis white and has on it the staff B, and clef 0. That section of the faceA, within the dotted lines, marked D,

(see Fig. 1) is made of glass or some other transparent material and hasbehind it the plate E. The said plate E, is white and its object is tomake the said transparent section D, appear similar to the whole of thesaid face A. In other words, the said plate E, will be seen through thetransparent section D, and the entire face will appear opaque anduniform in color.

The handle F, has rigidly secured to it the slide bar G, which assesloosely through the case by means of aperture H, and slides looselyinward and outward in the carriage I. The said slide bar G, has a holethrough which passes the arm J. (See Fig. 6). The said arm also passesthrough the carriage I and swings on the said carriage I, at the point L(see Fig. 3). The free end of the said arm J, has rigidly hinged to itthe disk M. The said disk M, is made of any suitable material and iscolored black. It will now be seen that when the handle F, is pulledoutward from the position shown in Fig. 3, the slide bar G, will swingarm J, to the right thus drawing the disk M from between the transparentsection D, of face A and the plate E. After the disk M, is thuswithdrawn it can be raised or lowered to any desired line or space ofstaff B, by a pressure upward or downward on the handle F. The saidpressure will be transmitted to the carriage I, by means of the slidebar G, and will cause the said carriage I, to travel along the shafts N,by virtue of the wheels 0, to the desired elevation carrying arm J, anddisk M, with it. In other words, by raising or lowering the handle F,the carriage I will travel correspondingly along the shafts N, carryingthe arm J, and disk M, to the said desired elevation. After thusbringing the said disk M, to the desired elevation a pressure inward onhandle F, will cause slide bar G, to swing arm J, to the left and thesaid arm J, will insert the disk M, between the trans arent section D,of face A, and the plate E, tffus presenting a note on the staff B.

The upright piece P, has rigidly secured on one side of it the plate R,(see Figs. 1 and The said olate R, has adjusted on it a series ofmusical reeds S. Each of the said reeds is tuned to give the pitch ofits respective note and is adjusted on the said plate It, relatively tothe line or space of the staff B, upon which its respective noteappears. The said reeds S, have their respective holes or vents T,through the upright P, and their respective valve caps U, which are helddown by their springs V, over the said holes T. The said valve caps U,have rigidly secured to them their respective valve levers W. It willnow be seen that when a pressure put-on the said lever N, to which thevalve cap U, is at-' tached, will pull the said valve cap U, away fromthe upright piece I", thus giving vent to its respective hole T, andreed S.

Heretofore it was explained that when the handle F, is pulled outwardfrom the position shown in Fig. 3, the arm J, will be swung to the rightby means of the slide bar G, and will pull the disk M, from between thetransparent section D, of face A, and the plate E, thus causing the noteto disappear from the staff B. It will now be seen that as the arm J,swings to the right, the arm Y, which is rigidly secured to arm J, (seeFig. 3) will release the pressure from the valve lever N, and will allowthe respective valve to close. It has been heretofore explained thatafter the disk M, is

thus withdrawn from between the transarent section '1), of face A, andthe plate 4, it can be raised or lowered to any desired line or space ofstaff B, by a pressure upward or downward on the handle F. The saidpressure will be transmitted to the carriage I, by means of the slidebar G, and will cause the said carriage I, to travel along shafts N, andN, by virtue of the wheels 0, to the desired elevation, carrying arm J,and disk M, with it. After thus bringing the handle I to the desiredelevation a pressure inward on the said handle F, will cause slide barG, to swing arm J, to the left and the said arm J, will insert the diskM, between the transparent section D, of face A, and the plate E, thuspresenting a note on the staff B. Simultaneously the arm Y, which isrigidly secured to arm J, (see Fig. 3) will press the respective valvelever W', of the note thus presented, and give vent to the respectivereed, tuned to sound the pitch of the said note. To supply the airnecessary to sound the said reed, I have the chamber Z, (see Fig. 3)connected with the bellows, a. The said bellows a, is operated by meansof lever 71, shaft 0, and crank handle (Z. Thus when the crank handle (Zis pushed backward, (see Figs. 1, 4 and 5) it will turn shaft 0, whichhas rigidly secured thereon the lever b. The said lever Z) works thebellows which force air through the connecting chamber 6, (see Fig. 3)into the chamber Z, and through the said open valve, thus sounding therespective pitch of the note presented on the staff.

In the specification for the purpose of clearness, I have illustrated myinvention as embodied in a mechanical music ladder, but it is to beunderstood that I do not limit myself thereby to the use of theparticular music ladder illustrated in my specification, inasmuch as Ican embody my invention in any other music ladder or music chart erasesI without departing from the principle of my invention or sacrificingany of its advantages.

What I claim as new, and desire to secure by Letters Patent, is:

1. In a device of the class described the combination of a box or casehaving a stall and clef on the face thereof, a device representing anote, a hand crank suitably placed on the outside of said case, a rodrigidly attached to the said crank and extending into the said casethrough a suitable opening, journals in which the said rod is held, a bellows placed inside the said case, a vertically extending arm attachedto the inner extremity of the said rod and adapted to operate the saidbellows, a narrow vertically ex tending air chamber placed inside of thesaid case and close to one of the sides thereof, an air channelconnecting the said air chamber with the said bellows, a series ofmusical reeds horizontally laced in a vertical row on a wall of the saidair chamber, holes or vents through the said wall corresponding to anddirectly opposite the reeds, valve caps adapted to close and open thesaid vents, springs cooperating with the said caps to retain them firmlyover the said vents, valve levers rigidly secured to the said caps andadapted to be swung on fulcrums situated in a vertical row on the saidwall, an arm for operating the said levers and a horizontally slidingmember for operating the said arm, the said arm and said member beingadapted to be vertically raised or lowered to any desired valve lever.

2. In a device of the class described the combination of a music staff,a device representing a note an operating member adapted to be raisedand lowered with the said note device, a series of valves suitablyplaced in a vertical row relatively to the lines and spaces of the saidmusic stafi the said valves being adapted to be operated by the saidoperating member, a series of musical reeds each placed in cooperativerelation with its respective valve, and tuned to the pit-ch of itsrespective note and means for supplying air to the said reeds.

3. In a device of the class described the combination with a case or boXhaving a staff and clef on the face thereof a device representing anote, an elongated vertical aperture in one side of the case ahorizontally reciprocating member extending into the said case throughthe said aperture, means for raising and lowering the said note deviceand horizontally reciprocating member a valve operating arm carried bythe said horizontally reciprocating member, a series of valves suitablyplaced in a vertical row relatively to the lines and spaces of the saidmusic staff, the said valves adapted to be operated by the sa1d valveoperating arm, a serres of musical reeds, each reed placed in c0-operative relation with its respective valve and tuned to the pitch ofits respective note, a bellows for supplying air to the said reeds, ahandle suitably placed on the outside of the said case for operating thesaid bellows and intermediate means for transmitting motion from thesaid handle to the said bellows.

at. In a device of the class described the combination of a valveoperating member a horizontally reciprocating bar carrying the saidvalve operating member a device representing a note means for raisingand lowering the said note device and said bar a music staff, a seriesof valves suitably placed in a vertical row relatively to the lines andspaces of the said music stail upon which the said note devicerepresents notes, the said valves adapted to be operated by the saidvalve operating member, an upright strip, a series of holes or ventsthrough the said upright strip placed in cooperative relation with thesaid valves and adapted to be closed and opened thereby, a series ofmusical reeds each placed in its respective hole or vent and tuned tothe pitch of its respective note and means for supplying air to the saidreeds.

5. In a device of the class described the combination with a verticallyreciprocating operating arm and a vertically reciprocating devicerepresenting a note, of a face or front having a music staff and clefthereon, a series of valve levers a series of valve caps a series ofmusical reeds tuned to the respective pitches of music notes presentedon the said music stafi by the said note device, a bellows locatedinside the case of the said device for supplying air to the said reeds,an arm for working the said bellows, a shaft for rocking the said arm,the said shaft extending out of the case through a suitable opening, anda handle rigidly secured to the said shaft.

6. In a device of the class described the combination of an operatingarm, a music staff a device representing a note adapted to travel over te said music staff, an upright strip, a series of valve capscorresponding in place and number to the lines and spaces of the saidstaff, a series of members for operating the said valve capsintermediate between the said valve caps and the said operating rm andadapted to be operated by the said operating arm, a vertical row ofholes or vents through the said upright strip corr sponding in place andnumber to the said valve caps, a series of springs cooperating with thesaid valve caps to hold them firmly over the said holes or vents, aseries of musical reeds placed respectively to the said holes or vents,a vertically extending air chamber adjacent to the said upright stripand adapted to supply air to the said holes or vents, a bellows, an airchannel connecting the said air chamber with the said bellows, an upwardextending arm for operating the said bellows, a rod for operating thesaid arm and a handle for operating the said. rod.

In testimony whereof, I have hereunto signed my name to thisspecification, in the presence of two subscribing witnesses, this fifthday of May, 1908, at Chicago, Illinois.

LADISLAXV A. JARPS.

Witnesses MAX ScHULz, OTAKAR J. BRABEC.

